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ee.Kernel.octagon
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Genera un kernel booleano con forma de octágono.
| Uso | Muestra |
|---|
ee.Kernel.octagon(radius, units, normalize, magnitude) | Kernel |
| Argumento | Tipo | Detalles |
|---|
radius | Número de punto flotante | Es el radio del kernel que se generará. |
units | Cadena, valor predeterminado: "pixels" | Es el sistema de medición del kernel ("píxeles" o "metros"). Si el kernel se especifica en metros, cambiará de tamaño cuando se modifique el nivel de zoom. |
normalize | Booleano, valor predeterminado: verdadero | Normaliza los valores del kernel para que sumen 1. |
magnitude | Número de punto flotante, valor predeterminado: 1 | Cada valor se multiplica por esta cantidad. |
Ejemplos
Editor de código (JavaScript)
print('An octagon kernel', ee.Kernel.octagon({radius: 3}));
/**
* Output weights matrix (up to 1/1000 precision for brevity)
*
* [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]
* [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]
* [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
* [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
* [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
* [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]
* [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]
*/
Configuración de Python
Consulta la página
Entorno de Python para obtener información sobre la API de Python y el uso de geemap para el desarrollo interactivo.
import ee
import geemap.core as geemap
Colab (Python)
from pprint import pprint
print('An octagon kernel:')
pprint(ee.Kernel.octagon(**{'radius': 3}).getInfo())
# Output weights matrix (up to 1/1000 precision for brevity)
# [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]
# [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]
# [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
# [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
# [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]
# [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]
# [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]
Salvo que se indique lo contrario, el contenido de esta página está sujeto a la licencia Atribución 4.0 de Creative Commons, y los ejemplos de código están sujetos a la licencia Apache 2.0. Para obtener más información, consulta las políticas del sitio de Google Developers. Java es una marca registrada de Oracle o sus afiliados.
Última actualización: 2025-07-26 (UTC)
[null,null,["Última actualización: 2025-07-26 (UTC)"],[[["\u003cp\u003eCreates a kernel with an octagon shape for use in image processing.\u003c/p\u003e\n"],["\u003cp\u003eThe kernel's radius can be specified in pixels or meters, with meter-based kernels resizing with zoom level changes.\u003c/p\u003e\n"],["\u003cp\u003eKernel values are normalized by default to sum to 1 and can be scaled using the \u003ccode\u003emagnitude\u003c/code\u003e parameter.\u003c/p\u003e\n"],["\u003cp\u003eThis kernel can be used for various image operations, such as smoothing, blurring or edge detection by applying it to an image using a convolution.\u003c/p\u003e\n"]]],[],null,["# ee.Kernel.octagon\n\nGenerates an octagon-shaped boolean kernel.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|------------------------------------------------------------------------|---------|\n| `ee.Kernel.octagon(radius, `*units* `, `*normalize* `, `*magnitude*`)` | Kernel |\n\n| Argument | Type | Details |\n|-------------|---------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `radius` | Float | The radius of the kernel to generate. |\n| `units` | String, default: \"pixels\" | The system of measurement for the kernel ('pixels' or 'meters'). If the kernel is specified in meters, it will resize when the zoom-level is changed. |\n| `normalize` | Boolean, default: true | Normalize the kernel values to sum to 1. |\n| `magnitude` | Float, default: 1 | Scale each value by this amount. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\nprint('An octagon kernel', ee.Kernel.octagon({radius: 3}));\n\n/**\n * Output weights matrix (up to 1/1000 precision for brevity)\n *\n * [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]\n * [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]\n * [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]\n * [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]\n * [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]\n * [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]\n * [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]\n */\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\nfrom pprint import pprint\n\nprint('An octagon kernel:')\npprint(ee.Kernel.octagon(**{'radius': 3}).getInfo())\n\n# Output weights matrix (up to 1/1000 precision for brevity)\n\n# [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]\n# [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]\n# [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]\n# [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]\n# [0.027, 0.027, 0.027, 0.027, 0.027, 0.027, 0.027]\n# [0.000, 0.027, 0.027, 0.027, 0.027, 0.027, 0.000]\n# [0.000, 0.000, 0.027, 0.027, 0.027, 0.000, 0.000]\n```"]]
